The EVK1101 provides a joystick to design Human to Machine Interface for software developments.
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The joystick inputs are low level active. (ie : the PVR register value is 0 when the joystick is set in a direction and/or pressed, and 1 otherwise)
The pinout is as follow :
Joystick Pin | Joystick Direction | GPIO Name | Alternate function used |
---|---|---|---|
Joy_A | LEFT | PB 6 | SCAN_4 |
Joy_B | UP | PB 7 | SCAN_5 |
Joy_C | DOWN | PB 8 | SCAN_6 |
Joy_D | RIGHT | PB 9 | SCAN_7 |
EXTINT | PUSH | PA 13 | EXTINT_8 |
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In order to use the joystick, two ways are available :
Using GPIO interrupts need to :
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